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(Classic ASP) HMAC with SHA256

Demonstrates how to compute a HMAC SHA256 keyed-hash message authentication code.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2")
set crypt = Server.CreateObject("Chilkat.Crypt2")

' The output will be Hex, so set the EncodingMode:
crypt.EncodingMode = "hex"

' Set the hash algorithm:
' Choices are: md5, sha-1, sha256, sha384, sha512, md2, haval
crypt.HashAlgorithm = "sha256"

' Set the HMAC key:
crypt.SetHmacKeyEncoded "The_API_Secret","ascii"
mac = crypt.HmacStringENC("The quick brown fox jumps over the lazy dog")
Response.Write "<pre>" & Server.HTMLEncode( mac) & "</pre>"

%>
</body>
</html>
 

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